Performance of Strengthened Non-Uniformly Corroded Reinforced SCC-RAP Members
This research examines the performance of strengthened non-uniformly corroded reinforced self-consolidating concrete (SCC) members. This paper focuses on three aspects of concrete including corrosion, concrete cover loss, and repair technique. Up to a 50% corrosion level is considered in this study....
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| Format: | Article |
| Language: | English |
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MDPI AG
2016-12-01
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| Series: | Fibers |
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| Online Access: | http://www.mdpi.com/2079-6439/4/4/30 |
| _version_ | 1828109175624826880 |
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| author | Ahmed Abdel-Mohti Hui Shen |
| author_facet | Ahmed Abdel-Mohti Hui Shen |
| author_sort | Ahmed Abdel-Mohti |
| collection | DOAJ |
| description | This research examines the performance of strengthened non-uniformly corroded reinforced self-consolidating concrete (SCC) members. This paper focuses on three aspects of concrete including corrosion, concrete cover loss, and repair technique. Up to a 50% corrosion level is considered in this study. Corrosion was experimentally induced and was simulated in other cases. Twenty-six reinforced concrete (RC) members with various corrosion levels or simulated corrosion levels were constructed and investigated. The beams with corrosion problems including those that had experimentally induced corrosion or simulated corrosion, with or without concrete cover, were repaired using carbon fiber reinforced polymer (CFRP) sheets and U-wraps. Two line loads were applied to all of the non-repaired and repaired beams constructed in this study until failure. It was found that it is conservative to model the actual corrosion by simulating the equivalent area of steel reinforcing for up to a 20% level of corrosion. For corrosion levels over 20%, the simulated corrosion over predicts the load capacity of the actual corrosion cases. When the concrete cover was lost and for a corrosion level larger than 10%, the repaired beam did not reach similar performance to that of a repaired beam with a concrete cover that was still intact. It appears that using two layers of CFRP sheet did not improve the load capacity further, but rather improved the ductility of the deteriorated RC member. |
| first_indexed | 2024-04-11T10:59:33Z |
| format | Article |
| id | doaj.art-620a01e99e254ba4b96507cd49506042 |
| institution | Directory Open Access Journal |
| issn | 2079-6439 |
| language | English |
| last_indexed | 2024-04-11T10:59:33Z |
| publishDate | 2016-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fibers |
| spelling | doaj.art-620a01e99e254ba4b96507cd495060422022-12-22T04:28:40ZengMDPI AGFibers2079-64392016-12-01443010.3390/fib4040030fib4040030Performance of Strengthened Non-Uniformly Corroded Reinforced SCC-RAP MembersAhmed Abdel-Mohti0Hui Shen1Civil Engineering Department, Ohio Northern University, Ada, OH 45810, USAMechanical Engineering Department, Ohio Northern University, Ada, OH 45810, USAThis research examines the performance of strengthened non-uniformly corroded reinforced self-consolidating concrete (SCC) members. This paper focuses on three aspects of concrete including corrosion, concrete cover loss, and repair technique. Up to a 50% corrosion level is considered in this study. Corrosion was experimentally induced and was simulated in other cases. Twenty-six reinforced concrete (RC) members with various corrosion levels or simulated corrosion levels were constructed and investigated. The beams with corrosion problems including those that had experimentally induced corrosion or simulated corrosion, with or without concrete cover, were repaired using carbon fiber reinforced polymer (CFRP) sheets and U-wraps. Two line loads were applied to all of the non-repaired and repaired beams constructed in this study until failure. It was found that it is conservative to model the actual corrosion by simulating the equivalent area of steel reinforcing for up to a 20% level of corrosion. For corrosion levels over 20%, the simulated corrosion over predicts the load capacity of the actual corrosion cases. When the concrete cover was lost and for a corrosion level larger than 10%, the repaired beam did not reach similar performance to that of a repaired beam with a concrete cover that was still intact. It appears that using two layers of CFRP sheet did not improve the load capacity further, but rather improved the ductility of the deteriorated RC member.http://www.mdpi.com/2079-6439/4/4/30self-consolidating concrete (SCC)corrosioncarbon fiber reinforced polymer (CFRP)structural performanceload |
| spellingShingle | Ahmed Abdel-Mohti Hui Shen Performance of Strengthened Non-Uniformly Corroded Reinforced SCC-RAP Members Fibers self-consolidating concrete (SCC) corrosion carbon fiber reinforced polymer (CFRP) structural performance load |
| title | Performance of Strengthened Non-Uniformly Corroded Reinforced SCC-RAP Members |
| title_full | Performance of Strengthened Non-Uniformly Corroded Reinforced SCC-RAP Members |
| title_fullStr | Performance of Strengthened Non-Uniformly Corroded Reinforced SCC-RAP Members |
| title_full_unstemmed | Performance of Strengthened Non-Uniformly Corroded Reinforced SCC-RAP Members |
| title_short | Performance of Strengthened Non-Uniformly Corroded Reinforced SCC-RAP Members |
| title_sort | performance of strengthened non uniformly corroded reinforced scc rap members |
| topic | self-consolidating concrete (SCC) corrosion carbon fiber reinforced polymer (CFRP) structural performance load |
| url | http://www.mdpi.com/2079-6439/4/4/30 |
| work_keys_str_mv | AT ahmedabdelmohti performanceofstrengthenednonuniformlycorrodedreinforcedsccrapmembers AT huishen performanceofstrengthenednonuniformlycorrodedreinforcedsccrapmembers |